import gg import gx import os import sokol.sgl pub struct Window { pub mut: ctx &gg.Context = unsafe { nil } img gg.Image } pub fn (mut window Window) init() { window.img = window.ctx.create_image(os.resource_abs_path('../assets/logo.png')) } pub fn (mut window Window) draw() { angle := f32(window.ctx.frame) / 64 // since window.ctx.frame is increased by 1 on every frame -> the angle will be increasing too window.ctx.begin() sgl.load_pipeline(window.ctx.pipeline.alpha) sgl.translate(400, 400, 0) // center of the screen sgl.rotate(angle, 0.0, 0.0, 1.0) // rotate around the Z axis pointing towards the camera sgl.enable_texture() sgl.texture(window.img.simg) sgl.begin_quads() sgl.c4b(255, 255, 255, 255) sgl.v3f_t2f(200, 200, 0, 1.0, 1.0) sgl.v3f_t2f(200, -200, 0, 1.0, 0.0) sgl.v3f_t2f(-200, -200, 0, 0.0, 0.0) sgl.v3f_t2f(-200, 200, 0, 0.0, 1.0) sgl.end() sgl.disable_texture() window.ctx.end() } fn main() { mut window := &Window{} window.ctx = gg.new_context( window_title: 'Rotating V logo' bg_color: gx.light_green width: 800 height: 800 user_data: window init_fn: window.init frame_fn: window.draw ) window.ctx.run() }